EP4094930A4 - Radial strengthening device and method for polylactic acid tube - Google Patents

Radial strengthening device and method for polylactic acid tube Download PDF

Info

Publication number
EP4094930A4
EP4094930A4 EP21842835.7A EP21842835A EP4094930A4 EP 4094930 A4 EP4094930 A4 EP 4094930A4 EP 21842835 A EP21842835 A EP 21842835A EP 4094930 A4 EP4094930 A4 EP 4094930A4
Authority
EP
European Patent Office
Prior art keywords
polylactic acid
strengthening device
acid tube
radial strengthening
radial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21842835.7A
Other languages
German (de)
French (fr)
Other versions
EP4094930A1 (en
Inventor
Li Wang
Chenzhao ZHANG
Tao Cai
Junyi Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Bio Heart Biological Technology Co Ltd
Original Assignee
Shanghai Bio Heart Biological Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Bio Heart Biological Technology Co Ltd filed Critical Shanghai Bio Heart Biological Technology Co Ltd
Publication of EP4094930A1 publication Critical patent/EP4094930A1/en
Publication of EP4094930A4 publication Critical patent/EP4094930A4/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0072—After-treatment of articles without altering their shape; Apparatus therefor for changing orientation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/04—Macromolecular materials
    • A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L31/148—Materials at least partially resorbable by the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2240/001—Designing or manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • B29C2071/027—Tempering, i.e. heating an object to a high temperature and quenching it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/04—Polyesters derived from hydroxycarboxylic acids
    • B29K2067/046—PLA, i.e. polylactic acid or polylactide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
EP21842835.7A 2020-07-14 2021-03-30 Radial strengthening device and method for polylactic acid tube Pending EP4094930A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010672032.1A CN111559098B (en) 2020-07-14 2020-07-14 Circumferential strengthening device and method for polylactic acid pipe
PCT/CN2021/083756 WO2022012087A1 (en) 2020-07-14 2021-03-30 Radial strengthening device and method for polylactic acid tube

Publications (2)

Publication Number Publication Date
EP4094930A1 EP4094930A1 (en) 2022-11-30
EP4094930A4 true EP4094930A4 (en) 2023-12-20

Family

ID=72068892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21842835.7A Pending EP4094930A4 (en) 2020-07-14 2021-03-30 Radial strengthening device and method for polylactic acid tube

Country Status (4)

Country Link
US (1) US20230150213A1 (en)
EP (1) EP4094930A4 (en)
CN (1) CN111559098B (en)
WO (1) WO2022012087A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111559098B (en) * 2020-07-14 2020-11-20 上海百心安生物技术有限公司 Circumferential strengthening device and method for polylactic acid pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080125707A1 (en) * 2006-06-30 2008-05-29 Advanced Cardiovascular Systems, Inc. Balloon catheter shaft having high strength and flexibility and method of making same
US20160031150A1 (en) * 2014-07-30 2016-02-04 Abbott Cardiovascular Systems Inc. Methods for solid phase processing of tubes and medical devices made from the processed tubes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1073922C (en) * 1997-12-31 2001-10-31 四川联合大学 Prepn. method and appts. for self-strengthening plastic pipe material
CN100354118C (en) * 2001-01-15 2007-12-12 米其林技术公司 Tyre building drum
CN102126297B (en) * 2011-02-12 2013-06-05 天津大学 Axial and radial stretching type tire molding drum
US20130226278A1 (en) * 2012-02-23 2013-08-29 Tyco Healthcare Group Lp Methods and apparatus for luminal stenting
CN109503916B (en) * 2018-07-13 2021-07-02 四川大学 High-strength hydrostatic-pressure-resistant polyethylene pipe and preparation method thereof
CN111559098B (en) * 2020-07-14 2020-11-20 上海百心安生物技术有限公司 Circumferential strengthening device and method for polylactic acid pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080125707A1 (en) * 2006-06-30 2008-05-29 Advanced Cardiovascular Systems, Inc. Balloon catheter shaft having high strength and flexibility and method of making same
US20160031150A1 (en) * 2014-07-30 2016-02-04 Abbott Cardiovascular Systems Inc. Methods for solid phase processing of tubes and medical devices made from the processed tubes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022012087A1 *

Also Published As

Publication number Publication date
CN111559098B (en) 2020-11-20
EP4094930A1 (en) 2022-11-30
WO2022012087A1 (en) 2022-01-20
CN111559098A (en) 2020-08-21
US20230150213A1 (en) 2023-05-18

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RIC1 Information provided on ipc code assigned before grant

Ipc: B29L 23/00 20060101ALN20231115BHEP

Ipc: B29K 67/00 20060101ALN20231115BHEP

Ipc: A61L 31/14 20060101ALI20231115BHEP

Ipc: A61L 31/06 20060101ALI20231115BHEP

Ipc: A61F 2/82 20130101ALI20231115BHEP

Ipc: A61F 2/04 20130101ALI20231115BHEP

Ipc: B29C 71/00 20060101ALI20231115BHEP

Ipc: B29C 71/02 20060101AFI20231115BHEP